Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1997-12-19
2000-01-04
Klimowicz, William J.
Dynamic magnetic information storage or retrieval
Record medium
In container
G11B 2308
Patent
active
060116765
ABSTRACT:
For preventing deterioration of magnetic characteristics of a magnetic tape in a tape cassette for magnetic recording and to maintain a stable traveling property of the magnetic tape the amount of a fatty acid contained in a lid portion (103) made of resin of a tape cassette (100) for magnetic recording is limited to a range from 1 to 100 ppm.
REFERENCES:
patent: 4486320 (1984-12-01), Sakurai
patent: 5225954 (1993-07-01), Kondo
patent: 5443872 (1995-08-01), Akao et al.
Klimowicz William J.
Maioli Jay H.
Sony Corporation
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